#645EE7#645EE7

#645EE7 is a mid, highly saturated blue. Relative luminance 0.165; OKLCH L 56.5% C 0.201 H 279.8°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#645EE7
RGB	rgb(100, 94, 231)
HSL	hsl(243, 74%, 64%)
HSV	hsv(243, 59%, 91%)
CMYK	cmyk(56.7%, 59.3%, 0%, 9.4%)
CIE-LAB	lab(47.60, 40.46, -68.93)
CIE-LCH	lch(47.60, 79.93, 300.41°)
OKLab	oklab(56.49% 0.034 -0.1979)
OKLCH	oklch(56.49% 0.201 279.8)
XYZ	xyz(23.6775, 16.4827, 77.5196)
Luminance	0.1648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EE7 #E1E75E

analogous

#5E9CE7 #645EE7 #A85EE7

triadic

#645EE7 #E7645E #5EE764

tetradic

#645EE7 #E75E9C #E1E75E #5EE7A8

square

#645EE7 #E75E9C #E1E75E #5EE7A8

split-complementary

#645EE7 #E7A85E #9CE75E

monochromatic

#211AB0 #3129DF #645EE7 #9793EF #CBC9F7

Accessibility & contrast

On white

4.89

#645EE7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#645EE7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EE7

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EE7	#FFFFFF	#000000	##FFFFFF
##645EE7	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076EB

Deuteranopia (green-blind)

#006CE4

Tritanopia (blue-blind)

#177F99

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645ee7;
/* rgb */ color: rgb(100, 94, 231);
/* oklch */ color: oklch(56.5% 0.201 279.8);

Tailwind

colors: {
  custom: {
    50: '#9b8cf0',
    500: '#645ee7',
    950: '#000000',
  },
}

SCSS

$custom: #645ee7;
$custom-light: #9b8cf0;
$custom-dark: #000000;

JSON

{
  "hex": "#645ee7",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 231
  },
  "hsl": {
    "h": 242.628,
    "s": 74.054,
    "l": 63.725
  },
  "oklch": {
    "l": 0.56485,
    "c": 0.20084,
    "h": 279.8
  },
  "luminance": 0.16484
}

Semantic roles & 50–950 ramp

primary

#645EE7

secondary

#E6E9B8

accent

#D60FCD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645EE7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →